[Correspondence] Metabolic surgery: one size fits all? – Authors’ reply

We thank Bengt Novik for his interest in our randomised controlled Oseberg trial1 and for the opportunity to respond and present our results stratified according to the Individualized Metabolic Surgery Score (IMSS).2 The IMSS classifies patients with diabetes according to their chances of partial remission of diabetes (HbA1c <6·5% off antidiabetes medication). The preoperative characteristics of Oseberg participants, including duration of diabetes and number of antidiabetes medications, did not differ substantially from the characteristics of patients retrospectively included in the study by Aminian and colleagues to construct and validate the IMSS (appendix p 1).

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